| Attribute |
HP EliteBook 840 G3 (T9X30EA) × | 
HP ProBook 640 G2 (T9X00ET) × |
| General | | |
| Model | HP EliteBook 840 G3 | HP ProBook 640 G2 |
| Product code | T9X30EA | T9X00ET |
| Design | | |
| Form factor | Clamshell | Clamshell |
| Brand | HP | HP |
| Family | EliteBook | ProBook |
| Series | 800 | 600 |
| Model name | 840 G3 | 640 G2 |
| Part number | T9X30EA | T9X00ET |
| Release year (year) | 2016 | 2016 |
| Processor | | |
| Processor family | 6th gen Intel Core i7 | 6th gen Intel Core i5 |
| Processor frequency (GHz) | 2.5 | 2.3 |
| Processor boost frequency (GHz) | 3.1 | 2.8 |
| Processor model | i7-6500U | i5-6200U |
| Processor cores | 2 | 2 |
| Processor threads | 4 | 4 |
| Processor lithography (Nm) | 14 | 14 |
| Processor socket | LGA 1356 (Socket B2) | LGA 1356 (Socket B2) |
| Processor cache (MB) | 4 | 3 |
| Memory | | |
| Internal memory type | DDR4-SDRAM | DDR4-SDRAM |
| Maximum internal memory (GB) | 16 | 16 |
| Memory clock speed (MHz) | 2,133 | 2,133 |
| Internal memory (GB) | 4 | 4 |
| Display | | |
| Display diagonal (inch) | 14 | 14 |
| HD type | Full HD | - |
| LED backlight | + | + |
| Touchscreen | - | - |
| Display resolution | 1920 x 1080 pixels | 1366 x 768 pixels |
| Graphics | | |
| On-board graphics adapter | + | + |
| Discrete graphics adapter | - | - |
| On-board graphics adapter base frequency (MHz) | 300 | 300 |
| Maximum on-board graphics adapter memory (GB) | 74 | 74 |
| On-board graphics adapter model | Intel HD Graphics 520 | Intel HD Graphics 520 |
| Storage | | |
| Total storage capacity (GB) | 500 | 500 |
| Card reader integrated | + | + |
| Storage media | HDD | HDD |
| Optical drive | - | + |
| Networking | | |
| Wi-Fi standards | - ieee 802.11a
- ieee 802.11ac
- ieee 802.11b
- ieee 802.11g
- ieee 802.11n
| - 802.11a
- 802.11b
- 802.11g
- 802.11n
|
| Bluetooth | + | + |
| Ethernet LAN | + | + |
| Ethernet LAN data rates (Mbit/s) | | |
| Wi-Fi | + | + |
| 4g | + | - |
| 3g | + | - |
| Bluetooth version | 4.2 | 4.0 |
| Ports and interfaces | | |
| USB 3.x Type-A ports | 2 | 2 |
| USB 3.x Type-C ports | 1 | 1 |
| Combo headphone/mic port | + | + |
| Docking connector | + | + |
| DVI port | - | - |
| Ethernet LAN (RJ-45) ports | 1 | 1 |
| Audio | | |
| Built-in microphone | + | + |
| Camera | | |
| Front camera | + | + |
| Keyboard | | |
| Numeric keypad | - | - |
| Keyboard backlit | + | - |
| Pointing device | Touchpad | Touchpad |
| Software | | |
| Operating system installed | Windows 7 Professional | Windows 7 Professional |
| Operating system architecture (bit) | 64 | 64 |
| Battery | | |
| Battery capacity (watt-hours) (Wh) | 46 | 48 |
| Weight and dimensions | | |
| Weight (kg) | 1.54 | 1.95 |
| Height (mm) | 18.9 | 27 |
| Depth (mm) | 237 | 237 |
| Width (mm) | 338 | 340 |
| Power | | |
| AC adapter power (W) | 45 | 45 |
| Security | | |
| Cable lock slot | + | + |
| Fingerprint reader | + | + |
| Trusted platform module (TPM) | + | + |